Spring-motor



J. H. HOLZHAUSEN.

SPRING MOTOR.

APPLICATION FILED NOV. 10. I911.

1 ,308,7 1 2 Patented July 1, 1919.

3 SHEETS-SHEET ll. H. HOLZHAUSEN.

SPRING MOTOR.

APPLICATION man NOV. I0, I91]- 1 ,308,7 1 2. Patented July 1, 1919.

' 3 SHEETS-SHEET 2.

'rm! COLUMBIA PLANOORAIII co., WASHINGTON. D. c.

l. H. HOLZHAUSEN.

SPRING MOTOR. APPLICATION FILED NOV. I0. 19]?- Patented July 1,' 1919.

- 3 SHEETS-SHEET 3.

I Fill il/y @65 THE COLUMBIA PLANOGRAPH 60-. WASHINGTON, u. c.

UNITED STATES PATENT UFFMJE.

JOHN H. HOLZI-IAUSEN, 0F MILWAUKEE, WISCONSIN. V

SPRING-MOTOR.

' To all whom it may concern:

resident of Milwaukee, in the county of Milwaukee and State oflVisconsin, have invented certain new and useful Improve-- ments inSpring-Motors; and I do hereby declare that the following is a full,clear, and exact description thereof.'

This invention relates to the subject of" spring motors, of that typeexemplified in Letters Patent No. 1188449, granted to me June 27, 1916,and refers particularly to the novel device I employ for rewinding themotor.

lVith the above and other objects in view which will appear as thedescription proceeds, my invention resides in the novel construction,combination and formation of parts substantially as hereinafterdescribed and particularly defined by the appended claims, it beingunderstood that such'changes in'the precise embodiment of the-inventionherein disclosed may be made as come within the scope of the claims.

In the accompanying drawings I have illustrated one complete example ofthe physical embodiment of my invention constructed according to thebest mode I have so far devised for the practical applications of theprinciples thereof, in which Figure 1 is a front-elevational view of thespring motor with parts broken away to more clearly define the manner ofj ournaling the spring arbors in the standards.

Fig. 2 is a side elevational view thereof.

Fig. 3 is a transverse sectional view taken on the plane indicated byline 33 of Fig. 1..

Fig. 4 is a view taken transversely through one of the spring motors onthe plane indicated by line 4-4 of Fig. 1.

Fig. 5 is a longitudinal sectional view taken on line 55 of Fig. 2.

Fig. 6 is a diagrammatic view of the notched wheels and pivoted dogs andpawls which I employ for rewinding the motor, and

Fig. 7 is a longitudinal sectional view taken on the line 77 of Fig. 2.

The improved spring motor comprises in its general organization, a baseor foundation 1 provided with end standards 2 and a centrally locatedstandard 3, the standards being positioned for the reception of PatentedJuly 1, 1919.

Application filed November 10, 1917. Serial N 0 201,238.

two independent motors, to be later de scribed.

The lower portions of the standards 2 and 3 have two longitudinallyalined arbors 4 journaled therein and at a point above the arbors 4, thesaid standards having the transmission shaft 5 journaled therein. Upperand lower bracket arms 6 and 6 respectively, project laterally from thestandards, and journaled in the arms (3 is apower shaft 7 having-mountedthereon a suitable pulley '8 for transmitting the energy of the motors.

These shafts 4, 5 and 7 are arranged in substantially parallel relationand each arbor has mounted thereon. intermediate the standards, a seriesof springs 9 coupled together by means of angle bars 10 to form the twomotor units as described in my aforementioned patent. Driven from'eachmotor unit is a sprocket wheel 11 connected by suitable chains 12 withsprocket wheels 13 mounted u 'on the transmission shaft 5, and the shaftis coupled with the shaft 5 by means of sprocket wheels '14 and 15 andchainsv 16, and for governing the motors, a suitable break 17 isemployed engaging the shaft 7 as more clearly shown in Figs. 1 and7.

The foregoing described construction is old and shown in my previouspatent, and hence constitutes no part of this invention which residesessentially in the device I employ for rewinding the motors.

The ends of the arbors 4 projecting outwardly of the standard 2 haveloosely mounted thereon sprocket wheels 18 adapted to be rotated bymeans of sprocket and chain connections with a driven shaft 19 journaledin the arms 6 of the standard. Fixed to the arbors 4 are the two pairsof like wheels 20 and 21, provided in their outer periphery with thenotched recesses 22 as clearly shown in Figs. 2, 3, and 6, the wheels 20being fixed to the arbors 4 outwardly of sprocket wheel 18 and thewheels 21 being fixed to the arbors 4 intermediate standards 2 andsprocket wheels 11.

Pivoted at 23 to each sprocket wheel 18 is a pawl or detent 24 having atongue portion 25 adapted to engage the notches 22 of wheel 20, andnormally urged to engagement with the wheel 20 by means ofsuitablespring means 26. The pawls 24, as before mentioned, are carriedby sprocket wheels 18 and are adapted towind the motor units with whichthey are associated and to provide for the alternately winding of saidmotor units in steps, or successively,

a trip device is employed for selectively-dis engaging the pawls 24 fromnotches 22 as clearly shown in Fig. 6.

This tripping 'devlcecomprises an annular lever 27 pivoted to each;sprocket wheel :18 and having, pivoted to its shorter arm 28 i a togglelink 29 pivoted lat T30 vitov the outer end of pawl 24, and theupstanding yarm'3l of said .lever is adapted-for engagement with aroller32, pivoted toeaehastandard 2 above the sprooketi wheel 18. v

Thus it vwill: be-sseen; that. thisdeviceprovides for the rewinding ofthessprings ,at' every half revolution, of the:;sprocket-;-wheel .18, inthat the pawl 2 L will-engage thelower notch of wheel :20 and; thencarry 1 with; it in'the revolution :said wheel 20; to the posi- ;tionillustrated in Fig. :2twl1enIthe same is tripped and releases saidwheel, and; pivoted 19 isadapted to bevrevolvedin any-suitable manner,and .tonprovide forrthe :manual ,o'p

erzitionthereotits end 19 isasquaredjin orideri to :provide for-thereception 1' of a: suitl able-.crankxarm, :not :shown.

" What is claimed is The combination with :a: spring, motor,

ofmeans secured to the arborthereof, for rewinding the motor com risinga pair of notched wheels, the note es thereof heing alined, a dogpivoted'to a stationary part and adapted for engagement with one of saidwheels to prevent retrograde movement thereof, ,a driven sprocket wheelloosely journaled on said arbor, and juxtaposed the other notched,wheel, a pawl pivotally carried by said sprocket wheel and engageablewith the last named-notched wheel for advancing. the same to rewind thespring, and ..meansffortripping sald pawl when 1t has vtraveledatxdetermined distance.

l2. Axdev-ice of the 'charactendescrihe comprising-a. driven shaft, asprocket wheel -.loosely.journaled upon the arbor of a spring .anotor.and adapted to be rotated from said driven sl1aft,=11otcl1ed wheelsdisposed one on=each side of the sprocket wheel,-ar piv- ,OtGdJidQg51)iVOtBd to a stationary part adapted to engage oneuof thenotchedwheelsto .preve1it retrograde movement thereof, a pawl pivoted tothesprockctwheel audiengaging the other .notched wheel foradvancmg thesameto rewind the motor, and means for trippingithe pivoted pawl inorderito providefor the rewinding of the spring at every one-halfrevolution. 10f said 7 sprocket wheel.

;=-In. testimony that "I claim the foregoing 71: have hereunto set; myhand atZMilwaukee, in the .county of ,=Milwaukee and v State, offiVi'sconsin.

.=J H.; HOLZHAUSEN.

Copies ofthis;patent: may-isbe-aobtained for fivegcentsearn-spy;addressing the Gommissioner of raten ts.

Washington, I). 1.6.

